It's a WCA spam scam. If you call back and follow the unsubscribe menu choices, it says your choice was invalid and gives you an earful. Eventually, it will tell you your subscription is cancelled - we'll see..."
I got a call too. I hung up the call then called back to cancel, had to listen to some BS message then when I hit "2" to cancel something I NEVER signed up for it say invalid...so I just pressed 2 again and it said cancelation when through but it takes 7 business days! When I looked up the number it says it's from a cell phone in Florida...I'm in California. Is verizon giving my cell phone number out?